Hypnosis for chronic pain and acute pain has a reliable and significant impact.
Hypnosis has been demonstrated to reduce analogue pain, and studies on the mechanisms of laboratory pain reduction have provided useful applications to clinical populations. Studies showing central nervous system activity during hypnotic procedures offer preliminary information concerning possible physiological mechanisms of hypnotic analgesia. Randomized controlled studies with clinical populations indicate that hypnosis has a reliable and significant impact on acute procedural pain and chronic pain conditions. Methodological issues of this body of research are discussed, as are methods to better integrate hypnosis into comprehensive pain treatment.
Hypnosis and clinical pain. Patterson DR, Jensen MP, Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, WA USA 98104 Psychol Bull. 2003 Jul;129(4):495-521.